Adjusting The Thread Presser Spring - JUKI LH-3500 Series Instruction Manual

6-7. Adjusting the thread presser spring

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
A
3
2
1
4
Insert a rod (thn rod, wrench, etc.) nto adjustng
hole 2 n thread presser sprng base 1 , and
loosen setscrew 4 wth a hexagonal wrench key
of .5 mm.
Adjust the thread presser sprng by movng rod
3 n the drecton of arrow mark A, and fix it with
setscrew 4 .
Clamp trouble occurs even when the
thread presser spring pressure is
excessive or insufficient. So, be careful.
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